Here is one method, though it has an issue.
You could put on the Color Shelf a calculated field of:
and this should increase in color as the sales increase.
A problem occurs when there is a zip code that
doesn't have any data for a particular month
(as in the example attached, there is no 2017 data for Wyoming).
So the final page is missing the running total coloring for Wyoming.
Would that missing data scenario ever occur in your data?
If so, is it possible to pad your data source with zeros for
months with no data?
Likely, it could also be padded inside Tableau
(of note, I first had to move YEAR(Order Date) up the row shelf,
select "Show Missing Values", then move the pill back to
the detail shelf).
Please see workbook attached in the Forum thread.
267118page.twbx 1.3 MB
Thanks for this as a start. It seems like the way around this is to pad my values with zero, i can do that with pandas.
Forgive me if this is common knowledge to you, but the Pages shelf will not be available to you when your work is published, unless this is a change I am not aware of. The pages shelf is a great testing tool and is cool to show users on sheets, but it does not have full function on a dashboard.